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1203results about How to "High boiling point" patented technology

Nano composite high-temperature-resistant extraction aid for thickened oil and super-thickened oil recovery and preparation method thereof

The invention discloses a nano composite high-temperature-resistant extraction aid for thickened oil and super-thickened oil recovery. The nano composite high-temperature-resistant extraction aid is prepared from 3-8 weight percent of modified nano-silica, 3-8 weight percent of petroleum sulfonate, 10-40 weight percent of a viscosity reducer, 5-15 weight percent of an emulsifier, 2-10 weight percent of a surface wetting agent, 2-10 weight percent of a penetrating agent, 5-10 weight percent of a high polymer modifier, 1-8 weight percent of a catalyst and the balance of water. The preparation method comprises the following steps: polymerizing the petroleum sulfonate, viscosity reducer, a promoting agent and the catalyst at the temperature of 60-150 DEG C for 2-6 hours according to a ratio, adding the modified nano inorganic aid, and uniformly mixing; and finally, adding the emulsifier, surface wetting agent, penetrating agent, high polymer modifier and water according to the ratio, and mixing for 1-2 hours. The nano composite high-temperature-resistant extraction aid for thickened oil and super-thickened oil recovery has high high-temperature resistance and excellent emulsification and salt resistance, the production efficiency can be greatly improved, and the recovery rate is reduced.
Owner:GUNGHO CHARGE TIANJIN REFINED PETROLEUM TECH DEV

Paper deacidification agent, and paper deacidification system and method thereof

The invention belongs to the technical field of paper deacidification, and specifically relates to a paper deacidification agent, and a paper deacidification system and a paper deacidification method thereof. The paper deacidification agent comprises nanometer oxide particles, a silane coupling agent and n-perfluorooctane liquid, wherein the nanometer oxide particles are suspended in the n-perfluorooctane liquid after coated by the silane coupling agent, and the nanometer oxide particles can also be replaced by nanometer magnesium hydroxide particles. The paper deacidification system comprises a deacidification liquid storage tank, a centrifugation pump, a deacidification device and a circulation device which are in successive connection, wherein the outlet of the circulation device is respectively connected with the inlet of the deacidification liquid storage tank and the inlet of the deacidification device; a circulation loop is formed between the deacidification device and the circulation device; and the deacidification device is also connected with the deacidification liquid storage tank via a deacidification liquid recovery device. The paper deacidification method comprises the following steps: putting a literature into the deacidification device, then pumping the paper deacidification agent into the deacidification device, shaking the literature, subjecting deacidification liquid to circulation, pumping the deacidification liquid back, and carrying out condensation recovery. According to the invention, safety and effectiveness are obtained; and the paper deacidification agent has the advantages of easy recovery, good effects and low cost.
Owner:NAT LIBRARY OF CHINA

Manufacturing technology of molybdenum-based rare-earth alloy slab and equipment thereof

The invention relates to a process for manufacturing the molybdenum based rare earth alloy plate and equipment for manufacturing the same, wherein pure molybdenum powder is simultaneously added with four rare earth oxides of ZrO2, Y2O3, La2O3 and Nd2O3 according to certain ratio, by utilizing the chrematistics of long and large crystal grain and strong sag resistance and anti-creep property of rare earth alloy elements and the dispersion strengthening function, the re-crystallization temperature of the metal molybdenum is increased, the mechanical performances of the molybdenum based material such as tensile property, yielding behavior and extensibility are improved, and the application range of the molybdenum based material is widened; and the manufacturing process comprises production procedures of material preparation treatment, mixing treatment, forming treatment, sintering treatment, material making treatment and the like and the setting of various technical parameters of special technical equipment and process. With the preparation process, the molybdenum based rare earth alloy plate which has the advantages of good electric conductivity and heat conductivity, excellent high-temperature resistance and corrosion resistance and better mechanical performances such as tensile property, yielding behavior and extensibility, and fills in domestic blank and can replace the imported material can be manufactured.
Owner:四平市北威钼业有限公司

Life-cycle water-free cooling solution

The invention relates to a life-cycle water-free cooling solution which is characterized by comprising the following components in percent by weight: 10-50 percent of propylene glycol, 50-80 percent of ethylene glycol, 0.1-10 percent of triazole compounds, 0.5-3.0 percent of sebacic acid, 0.2-1.0 percent of adipic acid, 0.5-1.5 percent of sodium benzoate, 0.3-5 percent of inorganic base, 0.01-0.1 percent of antifoaming agent and 0.01-0.1 percent of colouring agent. The cooling solution has a freezing point of below -50 DEG C and a boiling point of 166-191 DEG C; and because the cooling solution does not contain water, problems of boiling, gas etching, evaporating, scaling, rusting and the like caused by water existing in the cooling solution are thoroughly eliminated, a steam air resistance layer seriously influencing heat radiation is avoided from generating, power of an engine can be effectively improved and fuel is saved. Because the cooling solution does not contain water and has a reasonable corrosion inhibition system, the problem of corrosion is thoroughly solved; and the cooling solution has a service life of reaching up to 8 hundred thousand kilometers, is added once without replacement, is a life-cycle cooling solution, is especially suitable for military vehicles, high-end vehicles and high-power heavy-loading trucks and passenger cars, and can ensure that the vehicles safely run under extremely hot weather, severe cold weather, and severe environments such as desert, plateau, snowfield and the like.
Owner:JIANGXI CHEPU IND CO LTD

Method for sustainably preparing nanometer cellulose

The invention discloses a method for sustainably preparing nanometer cellulose in an environment-friendly and economic mode. The preparing method includes the following steps that 1, cellulose raw materials and organic acid are hydrolyzed and esterified; 2, the treated cellulose is prewashed in a centrifugal sedimentation mode, the organic acid is separated to be continuously recycled, washed cellulose suspension liquid is dialyzed, and then reacted acid and accessory substances are removed; 3, the dialyzed suspension liquid is separated to obtain small-particle cellulose nanometer crystals; 4, cellulose solid precipitated on a lower layer of the suspension liquid is treated through a high-pressure homogenizer or an ultrasonication physical machine to obtain colloidal cellulose nanometer fibrils. According to the method, in the preparing process, the modified cellulose raw materials are synchronously hydrolyzed and esterified through relative-safety and environment-friendly food-grade organic acid; compared with inorganic strong acid, the used organic acid is low in corrosion performance, high in boiling point, small in reaction pressure and easy to control and operate, and the cellulose nanometer crystals with the stable quality and the cellulose nanometer fibril products with the stable quality can be obtained at the same time.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Method for thermally modifying wood by oil palm oil

The invention relates to a method for thermally modifying wood by oil palm oil. The method comprises the following steps of: stacking the wood stably, and then placing the wood stack in a treating tank; heating up the oil palm oil and then filling to the treating tank, completely covering the wood by the oil palm oil, heating up the wood, and keeping the temperature for 0.5-3 hours for thermally modifying the wood when the temperature of the wood reaches 200-215 DGE C; and stopping heat supply, then discharging the oil palm oil immediately, filling atomized water into the treating tank to gradually cool the wood, and then naturally cooling the wood to the room temperature (30 DEG C) so as to complete the treatment. The method in the invention is simple in process; the wood is isolated from the air by the oil palm oil; the wood is effectively prevented from oxidation and degradation; the thermal treatment features in fast heating speed, short treating period and low cost; the treated wood features in increased size stability, small bending resistance intensity loss, high corrosion resistance, high intensity, good durability and the like; and the wood is convenient for industrial application, and can be widely used for the indoor and outdoor furniture, landscapes, finishing materials and the like.
Owner:RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI +1

Hydrothermal synthesis method for preparing nano-scale carbon-coated lithium iron phosphate

The invention discloses a hydrothermal synthesis method for preparing nano-scale carbon-coated lithium iron phosphate, which belongs to the field of lithium-ion battery anode materials and comprises the following steps of: sequentially adding a phosphorus-source solution, an iron-source solution, a carbon source, a lithium-source solution and a boiling-point elevator into a reaction device in sequence, mixing, then heating to the temperature of 60-180 DEG C for reaction under inert gas, cooling after the reaction, filtering precipitates to obtain a nano-scale lithium iron phosphate precursor, and then sintering the nano-scale lithium iron phosphate precursor at the temperature of 400-600 DEG C under the protection of the mixed gas of the inert gas and hydrogen gas. The combination of lithium, iron, phosphorus and the like on a molecular level is realized by the method, and the grains of a product are quite fine and are uniformly distributed; because the boiling-point elevator is adopted, the reaction temperature and pressure of the reaction kettle are decreased; and the hydrothermal synthesis method has the advantages of simple preparation process, short flow, easiness in operational control, low reaction temperature, short time, low energy consumption and easiness in realizing large-scale industrialized production.
Owner:JIANGSU DELI CHEM

Electrolyte for lithium ion battery and preparation method thereof

The invention discloses an electrolyte for a lithium ion battery and a preparation method thereof. The electrolyte consists of a main electrolyte, an electrolyte additive, a main solvent and a solvent additive. The preparation method comprises the following steps of: A. under the condition of vacuum or inert gas protection, respectively mixing the main solvent and the solvent additive with a drying agent (lithium oxide) which is dried to be at constant weight in advance, and mixing and filtering to remove the lithium oxide and lithium hydroxide sediment; B. uniformly mixing the dried main solvent and the dried solvent additive from the step A; and C. adding a main electrolyte mixture and an electrolyte additive into the solvent mixed in the step B, and agitating and dissolving under the vacuum and inert gas protection to prepare a solution with the mass mol concentration of the main electrolyte of 0.5-1.5 M. The electrolyte has the advantages of abundant resources, low price and no toxin, effectively improves the work temperature range of the battery and effectively prolongs the circulating service life of the battery, so that various types of the lithium ion batteries are manufactured; and the electrolyte is particularly suitable for manufacturing a lithium ion power battery with high power capacity and high multiplying power charging and discharging capacity.
Owner:广州云通锂电池股份有限公司

Preparation method for copper nanowire

The invention belongs to the technical field of novel function nanometer material preparation, and discloses a preparation method for a copper nanowire. Reducing agent is added to copper source on the premise that morphology control agent and chemical potential control agent are exist in water solution, and the copper nanowire are obtained after separation and under the condition that reaction is carried out for at least one hour in temperature of 25 DEG C to 100 DEG C, wherein the copper source is one or combination of copper hydroxide and copper oxide, the morphology control agent is one kind or combination of more than two kinds of polyethylene polyamine, the chemical potential control agent is one or combination of sodium hydroxide and potassium hydroxide, and the reducing agent is one or combination of hydrazine hydrate and hydroxylamine. The preparation method for the copper nanowire has the advantages of being simple in technology and device, cheap and easy-getting in raw materials, low in cost, high in productivity, suitable for large-scale industrial production, and the like. Prepared copper nanometers are uniform in diameter, diameters and lengths of the copper nanometers can be controlled through changing concentration of the morphology control agent and concentration and reaction temperature of the copper resource.
Owner:HENAN UNIVERSITY

Catalyzing distillation method for gasoline alkylate desulfuration

The invention relates to a catalyzing distillation method for gasoline alkylate desulfuration. The method comprises the following steps: gasoline containing sulfur is added into a catalyzing distillation tower; under the action of a solid acid catalyst, olefin in the gasoline and sulfide carry out alkylate reaction to generate a sulfocompound with a higher boiling point; fractionation is carried out on diesel oil or high-boiling-point hydrocarbon oil and the gasoline in a distillation tower, the high-boiling-point sulfocompound is transferred from the gasoline to the diesel oil or the high-boiling-point hydrocarbon oil by the fractionation; and the desulfurized gasoline is extracted from the top of the distillation tower; the operation pressure of the catalyzing distillation tower is 0.1-0.5MPa, the temperature of a reaction area is 80-200 DEG C, and the airspeed of the liquid is 0.1h<-1> to 20h<-1>. The invention reduces a gasoline hydrodesulfurizing device, effectively removes the sulfide in the gasoline without losing the octane number and achieves the double purposes of desulfuration and olefin reduction. The invention has the advantages of mutual promotion of reaction and separation, energy saving, little constructing investment, mild operation condition and easy control of the process.
Owner:PETROCHINA CO LTD
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